How to disable eval in php

How to disable eval in php: first install the php extension "Suhosin"; then load "Suhosin.so" in "php.ini"; finally add the content "suhosin.executor.disable_eval = on" That’s it.

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php eval() function operates on arrays:

<?php
$data = "array(&#39;key1&#39;=>&#39;value1&#39;,&#39;key2&#39;=>&#39;value2&#39;,&#39;key3&#39;=>&#39;value3&#39;,&#39;key4&#39;=>&#39;value4&#39;)";
$arr = eval("return $data;");
var_dump($arr); //array
?>

Run results:

array(4) { ["key1"]=> string(6) "value1" ["key2"]=> string(6) "value2" ["key3"]=> string(6) "value3" ["key4"]=> string(6) "value4" }

Many methods on the Internet that use disable_functions to disable eval are wrong!

In fact, eval() cannot be disabled using disable_functions in php.ini:

because eval() is a language construct and not a function

eval is zend, so it is not a PHP_FUNCTION function;

Then How to disable eval in php?

If you want to disable eval, you can use the php extension Suhosin:

After installing Suhosin, load Suhosin.so in php.ini, plus suhosin.executor.disable_eval = Just turn it on.

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